A240253 Number of 4Xn 0..3 arrays with no element equal to the sum of elements to its left or the sum of the elements above it or the sum of the elements diagonally to its northwest or the sum of the elements antidiagonally to its northeast, modulo 4

32, 0, 44, 536, 3530, 33216, 189430, 2166204, 14671432, 205187086, 1529276304, 24307535954, 186714191740

Offset

1,1

Comments

Row 4 of A240250

Links

Table of n, a(n) for n=1..13.

Example

Some solutions for n=4
..1..3..3..2....2..1..2..2....3..2..2..2....1..2..1..3....2..3..3..3
..2..0..1..1....3..0..0..1....1..0..3..3....3..0..0..2....1..0..2..2
..2..1..2..2....3..0..0..2....1..3..2..3....2..0..0..3....1..2..0..2
..2..1..1..2....3..0..1..3....3..0..2..2....1..0..0..3....2..0..0..1

Crossrefs

Sequence in context: A091308 A023927 A345676 * A057376 A079312 A221423

Adjacent sequences: A240250 A240251 A240252 * A240254 A240255 A240256

Keyword

nonn

Author

R. H. Hardin, Apr 03 2014

Status

approved